Decide Whether or Not the Matrices Are Inverses of Each

question 122

Multiple Choice

Decide whether or not the matrices are inverses of each other.
- $$\left[ \begin{array} { l l } - 5 & 1 \\- 7 & 1\end{array} \right] \text { and } \left[ \begin{array} { l l } \frac { 1 } { 2 } & - \frac { 1 } { 2 } \\\frac { 7 } { 2 } & - \frac { 5 } { 2 }\end{array} \right]$$

• A) Yes
• B) No

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Definitions:

Budget Constraint

The limitation on the consumption bundles that a consumer can afford based on their income and the prices of goods or services.

Income

The monetary payment received for work or through investments, pensions, or subsidies, used for consumption and saving.

Budget Constraint

A limitation on the consumption choices of individuals based on their income and the prices of goods and services.

Income

Regular earnings from employment or investment.